ISL29011IROZ-T7 Intersil, ISL29011IROZ-T7 Datasheet - Page 6

• Manufacturer Part Number: ISL29011IROZ-T7
• Description: IC PROXIMITY SENSOR AMB LT 8ODFN
• Manufacturer: Intersil

Specifications of ISL29011IROZ-T7

• Output Type: Digital - I²C
• Sensor Type: Light and Proximity
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL29011IROZ-T7TR

I2C Electrical Specifications
NOTE:
Principles of Operation
Photodiodes and ADC
The ISL29011 contains two photodiode arrays which convert
light into current. The spectral response for ambient light
sensing and IR sensing is shown in Figure 7 in the performance
curves section. After light is converted to current during the light
signal process, the current output is converted to digital by a
built-in 16-bit Analog-to-Digital Converter (ADC). An I
command reads the ambient light or IR intensity in counts.
The converter is a charge-balancing integrating type 16-bit
ADC. The chosen method for conversion is best for converting
PARAMETER
9. All parameters in I
t
t
R
t
SU:STO
VD;DAT
VD:ACK
t
pull-up
V
V
BUF
C
nH
nL
b
Set-up Time for STOP Condition
Bus Free Time Between a STOP and START
Condition
Capacitive Load for Each Bus Line
SDA and SCL system bus pull-up resistor
Data Valid Time
Data Valid Acknowledge Time
Noise Margin at the LOW Level
Noise Margin at the HIGH Level
2
C Electrical Specifications table are guaranteed by design and simulation.
6
DESCRIPTION
For SCL and SDA unless otherwise noted, V
16-bit ADC operation (Note 9).
FIGURE 1. I
2
C
ISL29011
2
Maximum is determined by t
C TIMING DIAGRAM
small current signals in the presence of an AC periodic noise. A
100ms integration time, for instance, highly rejects 50Hz and
60Hz power line noise simultaneously. See “Integration and
Conversion Time” on page 10.
The built-in ADC offers user flexibility in integration time or
conversion time. Integration time is determined by an internal
oscillator (f
the ADC. A good balancing act of integration time and
resolution depending on the application is required for optimal
results.
The ADC has I
accommodate various lighting conditions. For very dim
CONDITION
SUP(V
OSC
DDD
,V
2
DDA
), and the n-bit (n = 4, 8, 12,16) counter inside
C programmable range select to dynamically
R
)
= 3V, T
and t
F
A
= +25°C, R
0.1VDD
0.2VDD
1300
MIN
600
EXT
1
= 499kΩ 1% tolerance,
TYP MAX UNIT
February 4, 2010
400
0.9
0.9
FN6467.3
pF
kΩ
ns
ns
µs
µs
V
V